Clinacanthus nutans Lindau: Effects of drying methods on the bioactive compounds, color characteristics, and water activity

被引:16
作者
Ng, Mei Xiang [1 ]
Tham, Thing Chai [1 ]
Gan, Shu Hui [1 ]
Chua, Lee Suan [2 ]
Aziz, Rassmlan [2 ]
Baba, Mohamed Redza [3 ]
Abdullah, Luqman Chuah [4 ]
Chin, Nyuk Ling [5 ]
Ong, Sze Pheng [1 ]
Law, Chung Lim [1 ]
机构
[1] Univ Nottingham, Dept Chem & Environm Engn, Malaysia Campus, Semenyih, Selangor Darul, Malaysia
[2] Univ Teknol Malaysia, IBD, Skudai, Johor Bahru, Malaysia
[3] Minist Agr, Dept Agr, Div Ind Plant, Putrajaya, Malaysia
[4] Univ Putra Malaysia, Dept Chem & Environm Engn, Serdang, Selangor, Malaysia
[5] Univ Putra Malaysia, Dept Proc & Food Engn, Serdang, Selangor, Malaysia
关键词
Bioactive compounds; Clinacanthus nutans Lindau; color; extractable yield; mathematical modeling; orientin; vitexin; water activity; SOLAR; ANTIOXIDANTS; PRODUCT; MODELS; DRYERS;
D O I
10.1080/07373937.2017.1304410
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
The application of solar drying (SD) and heat pump-assisted solar drying (HPSD) on the retention of flavonoid components, total color changes, and water activity of Clinacanthus nutans Lindau leaves were investigated. Analysis of data shows significantly higher extractable yield and flavonoid (orientin and vitexin) percentage during the drying with HPSD. The same drying technique also revealed optimum color values and low water activity. Thin-layer models fitted to the experimental data show that Hii and Law model is suitable for SD, while logarithmic model is able to give a good fit to HPSD.
引用
收藏
页码:146 / 159
页数:14
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